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Finding the Fourth Proportional to 101,325.63, 139,841.24 and 84,299.84

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Solution

The fourth proportional to 101,325.63, 139,841.24 and 84,299.84 is: 116,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,325.63 : 139,841.24 = 84,299.84 : x
  2. Step 2: Convert to fraction form
    101,325.63/139,841.24 = 84,299.84/x
  3. Step 3: Cross multiply
    101,325.63x = 139,841.24 × 84,299.84
  4. Step 4: Simplify right side
    101,325.63x = 11,788,593,561.10
  5. Step 5: Solve for x
    x = 11,788,593,561.10/101,325.63
  6. Step 6: Final answer
    x = 116,343.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.